#21 please solve and box final answers

Let P= m O + N | 2 Complete parts (a) and (b). a. Find a basis Uj, up, U3 ) for Rs such that P is the change-of-coordinates matrix from fu1, U2, U3) to the basis {V1, V2, V3) [Hint: What do the columns of P represent?] C + B U, = . U2 - b. Find a basis (W1, W2, Wa) for R such that P is the change-of-coordinates matrix from